JP2001195461A - Business support system and business method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a business support system and a business method which can obtain at least ground data at the actual place and drastically improve the efficiency of door-to-door sales. SOLUTION: This system has a display 41, also makes a portable information terminal 4 provided with a GPS function plotting a location by a GPS communicable with a ground data display device 2, in which ground data to be a ground map are stored via a radio telephone network, detects the location of a customer house by the GPS when a user arrives at the customer house, makes the device 2 output ground data on the basis of the location detected by the GPS and can calculate the amount of groundwork. Thus, the approximate amount of the entire construction work of a house including the foundation can be presented to the customer and business negotiations are performed efficiently with the customer, so that the efficiency of the door-to-door sales is improved drastically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a business activity support system and a business method for conducting business activities using a device such as a computer capable of storing a large amount of data.

[0002]

2. Description of the Related Art Conventionally, in order to efficiently promote marketing activities, customer information in which information about a large number of customers is input to a computer, a database about the customers is constructed with the information, and the latest information can be always taken out. A management system is known (Japanese Patent Laid-Open No. 6-2667).
No. 31, etc.). Such customer information management system,
It can also be used for sales activities of home building contractors such as prefabricated house manufacturers. For example, when a prospect who has a prospect of ordering a building visits a residential exhibition hall, when a salesperson assigned to each district visits a prospect,
Also, when a contracted customer etc. introduces another prospective construction customer, input information about a large number of customers that could be obtained into a computer, and build a database of customer information with this information. For example, it can be used for sales and marketing activities of home building contractors. In other words, there are a wide variety of homes that are products of home building contractors with different scales and specifications, such as small to large, or simple to luxurious,
The contract price for the construction work has a remarkably large price difference from expensive to inexpensive ones. For this reason, if a customer information management system is prepared and customer information is input to this customer information management system and information such as customer requests and budgets can be easily obtained at any time, customer requests and budgets can be obtained in advance. Information such as a budget can be grasped, and a sample of a house according to each customer and an estimate thereof can be prepared before a visit. As a result, when visiting the customer, a sample of the house that the customer is likely to request and an estimate thereof can be surely presented, and business negotiations with the customer can be promptly performed.

[0003]

In such a customer information management system, even if customer data relating to the customer is stored, the customer data can be extracted unless the correct address and location of the customer's site are input. Because it is not possible to understand the house as a product to recommend to the customer, it is difficult to conduct business with the customer, and it is difficult to do so-called jump-in business without appointment in advance even if you use the customer information management system. Become. For this reason, in order to greatly improve the efficiency of visiting sales, there is a demand for a sales tool that extracts necessary information on site and enables customers to visit without a prior appointment. In particular, since the construction cost of the foundation of a house varies greatly depending on the condition of the ground,
It is necessary to grasp the ground data on the customer's premises in advance, but the ground data cannot be judged by looking at the premises alone, unlike the housing itself, whose size and specifications can be estimated from the premises and the surrounding environment. For this reason, the above-mentioned customer information management system stores ground map data, but the ground data cannot be extracted unless the correct address and location of the customer's site are input. ,
There is a particularly strong demand for a sales tool that cannot calculate the amount of foundation work, cannot efficiently conduct business negotiations with customers, and can extract ground data at the site.

[0004] It is an object of the present invention to provide a sales support system and a sales method in which at least ground data can be obtained at the site and the efficiency of visiting sales can be greatly improved.

[0005]

According to a first aspect of the present invention, referring to the drawings, a ground data display device 2 in which ground data serving as a ground map representing the state of the ground is stored.
And a portable information terminal 4 having a display 41 for displaying the ground map and a GPS function for locating the position by GPS. The ground data display device 2 and the portable information terminal 4 Business, characterized in that they can communicate with each other via a network, and the ground data display device 2 is provided with a conversion table 50 for converting one of latitude, longitude and address into the other. It is a support system 1. In the first aspect of the present invention, the precise position of the customer's site can be grasped by the GPS, and if the accurate position is input, the customer's ground data can be extracted from the ground data display device 2. In addition, the construction cost of the foundation can be calculated at the visited site. In addition, since the size and specifications of the house to be recommended to the customer can be estimated from the site and the surrounding environment, it is possible to provide the customer with a rough estimate of the entire construction work of the house including the foundation, and it is possible to negotiate with the customer. Can be done efficiently,
You can also do so-called dive sales without prior appointments, which greatly improves the efficiency of business visits.

[0006] A second invention of the present invention is a sales method using the sales support system 1 according to the first invention described above. When visiting a customer, the portable information terminal 4 converts ground data of the customer's premises. It is characterized in that the negotiation is performed based on the accumulated amount while displaying and performing the construction work of the building including the foundation using the ground data. In the second aspect of the invention, as described above, the construction cost of the foundation can be calculated at the site of the visit, so that immediately before the visit, the construction cost of the housing including the construction cost of the foundation can be calculated. Even so-called jump-in sales without prior appointments, business negotiations with customers can be performed efficiently, and the efficiency of visiting sales can be greatly improved.

[0007] In the above, it is preferable that the latitude and longitude of the conversion table 50 provided in the ground data display device include any one of 6-digit and 7-digit numerical data below the decimal point. If the numerical data of 6 digits after the decimal point is adopted as the data of the latitude / longitude, two positions shifted by several meters can be specified separately, and if the numerical data of 7 digits after the decimal point is adopted, the position is shifted by several tens of cm. These two positions can be specified separately. Thereby, the position of the customer's premises can be accurately specified, and the conversion table 50 in which the longitude / latitude and the customer's address correspond accurately without excessively increasing the data amount relating to the longitude / latitude. Can be obtained.

[0008] At least one of the ground data display device 2 and the portable information terminal 4 mutually communicates with a customer information management device 3 in which customer data on customers who are likely to exchange building construction contracts is stored. Preferably it is possible. In this way, various kinds of information about the customer stored in the customer information management device 3 can be obtained at the site where the customer visits. As a result, it is possible to search for a wide variety of housing samples at the site of the visit that the customer is likely to request, and it is possible to promptly present a wide variety of housing samples to the customer even without so-called appointment sales without advance appointment. In addition, business negotiations with customers can be carried out densely, and the efficiency of visiting sales can be greatly improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a sales support system 1 of the present embodiment. This sales support system 1
Is a system for an industrialized home manufacturing / sales company to efficiently perform sales for customers such as prospective customers who have a contract for building contract and customers who have already contracted. The system 1 includes computers 2 and 3 mutually connected by a communication network such as a LAN, and a palmtop computer 4 as a portable information terminal.

The computer 2 is a ground data display device in which ground data constituting a ground map representing the state of the ground is stored, and includes a man-machine interface such as a keyboard, a mouse, and a display (not shown). A ground map composed of ground data is displayed on the display of the computer 2 as necessary. The computer 2 includes a ground map database 21 in which many ground maps composed of ground data are stored, a database maintenance unit 22 for updating the data of the ground map database 21 to the latest one, An input / output control unit 23 for controlling input / output is provided.

When new ground data is input from the outside, the database maintenance unit 22 automatically updates the ground map stored in the ground map database 21 based on this ground data. I / O controller 23
Is a computer 3 and a palmtop computer 4
In response to the request, the necessary ground map and ground data are sent to the requesting computer. The input / output control unit 23 is provided with a conversion table for converting one of the latitude / longitude and the address to the other. According to this conversion table, when a point on the ground map displayed on the display is designated with a mouse or the like, the longitude and latitude of the point are specified, and the address and the ground strength of the point indicated by the point are displayed on the display as ground data. It has become so. In addition, when a search screen is displayed on the display, and an address of a desired point is input with a keyboard in a state where the search screen is displayed, a ground map near the address is displayed on the display, and the address is displayed. The bearing capacity of the point indicated is indicated by a number near the point.

As shown in FIG. 2, the conversion table has a column 51 in which an address is described, a column 52 in which the latitude of the address is described, and a column 53 in which the longitude of the address is described. A conversion table 50 is employed. Conversion table 50
The latitude and longitude are numerical data with six digits after the decimal point. In the conversion table 50, numerical data having five digits after the decimal point is obtained by omitting “0” at the sixth digit after the decimal point, and is substantially six digits after the decimal point. I have.

Returning to FIG. 1, the computer 3 is a customer information management device in which customer data on customers who are expected to enter into a construction contract for a house, which is a building, is stored. Is provided. The computer 3 includes a customer information database 31 storing information about customers, a map drawing database 32 storing a plurality of types of map drawings, a house sample drawing database 33 storing sample house drawings, A basic construction estimation unit 34 for estimating the estimated amount of the basic construction and an input / output control unit 35 for controlling input / output of data are provided.

The customer information database 31 stores, as customer data, information about a large number of registered customers, for example, the product type of the product to be provided to the customer, the customer's own age, occupation and annual income, family structure, and the entire family. Income (household annual income), type of residence, current address, telephone number, building address,
The site area, the latitude and longitude of the current address, and the latitude and longitude of the building site are stored as data.

As shown in FIG. 3, the map drawing database 32 includes a customer coordinate map 71 indicated by a point 81 indicating the location of the customer and the site, a topographical map 72 indicating rivers and buildings, and a map of municipalities. A municipal boundary map 73 showing the boundaries, a road map 74 showing the roads, and a city planning map 75 showing the use of each area
Is stored. On the display of the computer 3, a necessary map is superimposed on a customer coordinate map 71, a topographic map 72, a municipal boundary map 73, a road map 74, and a city planning map 75 at the same time as necessary.
76 can be displayed. In FIG. 3, the customer coordinate map 71 and the city planning map 75 are superimposed.

Here, the city planning map 75 changes the color for each different use to indicate the use of the area. By referring to the city planning map 75, the computer 3 determines what kind of use area the designated point belongs to. For example, the computer 3 is dedicated to a first-class house where only low-rise houses can be built. It is automatically determined whether the area belongs to a second-class residential area where high-rise houses such as condominiums can be built, or a commercial area where buildings can be densely built. The map drawing database 32 also stores regional data relating to the building ratio and the floor area ratio that differ for each region shown in the city planning map 75. The computer 3 automatically calculates the maximum building area and the total floor area of a building that can be built on the site designated by the latitude / longitude or the address by referring to the regional data.

That is, as shown in FIG.
Are provided with columns 60A and 60B for inputting an address and a latitude / longitude with a keyboard. By using these fields 60A and 60B to enter an address or latitude / longitude by keyboard, or by clicking a desired point on the city planning map 75 with a mouse, basic information (name, telephone, etc.) relating to the customer at the point is obtained. Numbers etc.) are displayed. In this state, when the tag 62 on which “detailed information” is written is clicked, the building ratio and the floor area ratio of the point are displayed. Here, when it is desired to return to the display of the basic information, the original basic information is displayed by clicking the tag 61 marked "basic information". And "Detailed information"
Clicking on the tag 62 marked "" and entering the site area, the maximum building area and the total floor area of the buildings that can be built on the site are automatically calculated.

The house sample drawing database 33 is a database in which drawing data serving as sample drawings of various houses having different styles and scales are stored. The house sample drawing database 33 is associated with the city planning map 75, and a house corresponding to the building area and the total floor area obtained on the city planning map 75 is searched from the house sample drawing database 33. . That is, below the tag 62 marked "Detailed Information" provided around the city planning map 75 shown in FIG. 4, a tag 63 marked "Appearance / Layout" is provided. By clicking, an appropriate house sample is searched from the house sample drawing database 33 according to the building area and the total floor area obtained on the city planning map 75, and a sample drawing 63A of a house that can be built on the site is displayed. It has become so. In addition, both the appearance and the floor plan are displayed on the sample drawing 63A of the house. In such a sample drawing, a plurality of kinds of different floor plans are prepared even for the same appearance, and conversely, a plurality of kinds of different appearances are prepared for the same floor plan. In addition, in the sample drawing, a plurality of types can be searched for each of the appearance and the layout, and the plurality of appearances and the layout can be individually changed by operating a page feed key or the like. .
Further, the drawing data constituting the sample drawing also includes, as additional information of the drawing data, an approximate amount of money for the construction work of the house shown in the sample drawing. In addition, among the sample drawings sequentially displayed on the display, the sample drawing that the customer liked can be clicked on the upload areas 63B and 63C, and the drawing data is stored in the customer information database.
At 31, it is registered as one of the customer data. At the same time as the registration of the drawing data, an approximate amount of money for the construction work of the house shown in the sample drawing is also registered as additional information of the drawing data.

Returning to FIG. 1, the basic construction estimation unit 34
The ground data at the designated point is received from the computer 2, and based on the received ground data, the approximate amount of money required for the foundation work of the house shown in the sample drawing registered in the customer information database 31 is added. The input / output control unit 23 causes the computer 2 to send the ground data in response to a request from the internal
In response to a request from the palmtop computer 4, data such as customer data, map drawing data, sample drawing data, and the approximate amount of money required for foundation work are sent to the computer 4. The computers 2 and 3 as described above are connected to a digital communication network such as an ISDN via a server 5 and a communication controller 6, and can communicate with another computer provided outside.

The palmtop computer 4 is a small portable information terminal that is convenient to carry. The palmtop computer 4 is provided with a liquid crystal display 41. Various data stored in the computers 2 and 3 are input, and a map such as a ground map or a superimposed map 76 constituted by these data can be displayed on the display 41. It has become. The palmtop computer 4 also has a satellite navigation system (Global Pos
itioning System) receiver,
The position of the palmtop computer 4 is accurately located by the latitude and longitude displayed on the display 41. The GPS function of the palmtop computer 4 includes a so-called DGPS (Differential Global Position), which can remove a fluctuation intentionally added to a signal from an artificial satellite and locate the position with higher precision than a simple GPS.
ing System). As the palmtop computer 4, a product name “Locatio” manufactured by Seiko Epson Corporation can be used.

The palmtop computer 4 is connected to a PHS 7 which is a wireless telephone, so that it can be connected to a wireless telephone network. By dialing the PHS 7, the server 5 and the palmtop computer 4 can communicate with each other via a wireless telephone network and a digital communication network. Thereby, the palmtop computer 4 can be arbitrarily connected via the server 5 to one of the computer 2 as the ground data display device and the computer 3 as the customer information management device. Can communicate with both.

Here, the palmtop computer 4 is
When the GPS function detects the latitude and longitude indicating the position and transmits the latitude and longitude to the computer 2,
The computer 2 sends customer data constituting the screen 60 (see FIG. 4) to the palmtop computer 4 among the data of the customer who is the owner of the site including the point indicated by the latitude and longitude. The palmtop computer 4 that has received the customer data displays the screen 60 on the display 41. When the palmtop computer 4 is operated using the screen 60, various information about the customer is displayed on the display 41.

For example, when customer information is needed,
By performing a predetermined operation, the product type of the product to be provided to the customer, the customer's own age, occupation and annual income, family structure, income of the entire family (household annual income), residence form, current address,
Customer data such as a telephone number, an address of a building site, a site area, the latitude and longitude of the current address, and the latitude and longitude of the building site can be displayed on the display 41. Also,
When information on the customer's premises and its surroundings is needed, a predetermined operation is performed, and a customer coordinate map 71, a terrain map 72,
One of a municipal boundary map 73, a road map 74, a city planning map 75, and an overlap map 76 in which these maps 71 to 75 are superimposed can be displayed. Here, if a predetermined operation is performed in a state where the city planning map 75 is displayed, the computer 3 is accessed, and by referring to the city planning map 75, it is determined what kind of use area the site belongs to, Detect the building ratio and floor area ratio of the area, calculate the maximum building area and total floor area of a building that can be built on the site, transmit the result to the palmtop computer 4, and calculate the calculated building area and total floor area. Is displayed on the display 41 of the palmtop computer 4.

After calculating the building area and the total floor area, when a predetermined operation is performed on the palmtop computer 4, a house sample drawing database 33 of the computer 3 is obtained.
Is accessed, a house corresponding to the building area and the total floor area is searched from the house sample drawing database 33, and one of the corresponding sample drawings is displayed on the display 41 of the palmtop computer 4. The displayed sample drawing can be changed to another sample screen by operating a page feed key or the like. When a predetermined operation is performed in a state where the sample drawing is displayed on the display 41, the basic construction estimate estimating unit 34 of the computer 3 is accessed, and the estimated amount of money required for the foundation work of the house shown in the sample drawing is accumulated. It has become. Upon completion of the estimation of the basic work estimation section 34, the estimated amounts of the construction work and the basic work of the house shown in the sample drawing are respectively displayed on the display 41 of the palmtop computer 4. Here, if the customer or the like likes the house indicated by the sample drawing displayed on the display 41, the sample drawing is stored in the customer information database 31 by one of the predetermined operations. It has been registered as.

Next, an operation procedure of the palmtop computer 4 when conducting a visiting business using the business support system 1 according to the present embodiment will be described. First, when leaving the office, the salesperson α carries the palmtop computer 4. When you leave, plan your visits in detail,
An appointment may be attached to the customer in advance, or a visit destination area may be roughly determined, and a jump-in visit may be made to the customer in that area without an appointment.
When the customer α arrives at the house of the customer γ, the salesperson α enters the premises and operates the palmtop computer 4 to operate the palmtop computer 4 as shown in FIG.
Longitude). Thereafter, the customer data specified by the latitude and longitude is transmitted to the computer 3 and the customer data is displayed on the display of the palmtop computer 4.
Display on 41. Here, since the salesperson α has met the customer γ for the first time and has not made an appointment in advance, the items to be known about the customer γ are displayed.
Read and understand from the customer data displayed in 41.

Once you have enough information about the customer,
As shown in FIG. 6 (B), the customer presses the intercom β at the customer's house to call the customer, explain his / her identity, and start explaining about the house being handled by the salesperson.
Here, if passed through the house, the salesperson α
As shown in (C), the conversation with the customer γ is performed, and the size and specification of the house requested by the customer γ are estimated from the story of the customer γ.

When the size and specification of the house requested by the customer γ can be grasped to some extent, the salesperson α operates the palmtop computer 4 to search the house sample drawing database 33 of the computer 3 and seems to request the customer γ. A sample drawing of a simple house is displayed on the display 41 of the palmtop computer 4, and the sample drawing is presented to the customer γ as shown in FIG. Here, if the customer γ is not satisfied with the house shown in the sample drawing, the user operates the palmtop computer 4 to change another sample drawing to the customer γ.
And various sample drawings are presented to the customer γ until the customer γ is satisfied.

When the customer γ is satisfied with the house shown in the sample drawing, the user operates the palmtop computer 4 to access the basic work estimate estimating unit 34 of the computer 3 and obtains the foundation of the house shown in the sample drawing. The estimated amount required for the construction is accumulated, and the estimated amount required for the foundation work is displayed on the display 41 of the palmtop computer 4 together with the estimated amount required for the building construction of the house. Here, if the total construction cost required for both the foundation work and the construction work exceeds the budget of the customer γ, the user operates the palmtop computer 4 to approximate the size and specifications to the house that the customer γ has satisfied, and A sample drawing indicating a house whose total construction cost falls within the budget is searched, and when the corresponding sample drawing is displayed on the display 41 of the palmtop computer 4, the sample drawing is presented to the customer γ. When the customer γ likes the presented sample drawing, the drawing data is registered as one of the customer data in the customer information database 31 by a predetermined operation, and the salesperson α prepares a temporary contract from the customer γ. After confirming that the customer γ intends to order a house, for example, by taking it, the customer γ leaves the house. After this, the customer γ
Using the sample drawing that he liked as the basic design drawing, further taking in the request of the customer γ, creating a working design drawing, creating an estimate based on the completed working design drawing, and And this agreement.

According to the above-described embodiment, the following effects can be obtained. That is, a GPS function is provided in the palmtop computer 4 that can be carried outdoors, and the palmtop computer 4 and the computer 2 in which ground data serving as a ground map representing the state of the ground are communicable with each other. 2, a conversion table 50 for converting from one of the latitude / longitude and the address to the other is provided, so that the accurate position of the customer's premises can be grasped by GPS, and if the accurate position is input, By the computer 2, the ground strength of the site owned by the customer γ can be grasped, and the construction cost of the foundation can be calculated at the visited site based on the ground strength. Also, the computer 3 and the palmtop computer 4 storing the drawing data, which are sample drawings of various houses, can communicate with each other, thereby making it possible to easily search for sample drawings of houses that can be built on the site of the customer γ. And the amount of money required for the construction of the house in the sample drawing can be easily ascertained, so that at the visiting site, it is possible to present to the customer γ a rough estimate of the entire construction of the house including the foundation. Negotiations with the customer γ can be conducted efficiently, and the efficiency of visiting sales can be greatly improved even in the case of so-called dive sales without prior appointments.

Further, the latitude and longitude of the conversion table 50 are
Since it is represented by numerical data with 6 digits after the decimal point, two positions shifted by several meters can be specified separately,
With the latitude and longitude, the location of the customer's premises can be accurately specified, and the longitude and latitude can be accurately associated with the customer's address without excessively increasing the data volume relating to the longitude and latitude, and In this way, the conversion table 50 can be accessed quickly.

Further, the computer 3 in which the customer data of the customer and the drawing data which is a sample drawing of the house are stored and the palmtop computer 4 can communicate with each other, and various kinds of information stored in the computer 3 are transmitted. Since it can be obtained at the site of the visit, the customer's request can be guessed in advance at the site of the visit, and a variety of housing samples that the customer is likely to request can be searched at the site of the visit, Even without so-called appointments, so-called jump-in sales can promptly present a wide variety of housing samples to customers, enable close business negotiations with customers, and in this respect also greatly improve the efficiency of visiting sales.

The present invention is not limited to the above embodiment, but includes the following modifications. In other words, the conversion table is not limited to a table expressing longitude and latitude by numerical data having six digits after the decimal point, and may be a table expressing longitude and latitude using numerical data having seven digits after the decimal point. The means for connecting the portable information terminal to the wireless telephone network is not limited to the PHS, but may be a portable telephone or a car telephone.

Further, in the previous embodiment, the customer work management device was provided with the basic construction estimation unit. However, the basic construction estimation unit may be provided in the portable information terminal, or the ground data display unit may be provided. It may be provided in the device. Further, the sales support system is not limited to a portable information terminal that can directly communicate with both the ground data display device and the customer information management device. May be directly communicable with each other, and may be communicable with the other via one of the directly communicable terminals.

[0034]

According to the invention of claim 1 of the present invention, it is possible to grasp the exact position of the customer's premises by the GPS, and by inputting the accurate position, the ground data display device can display the exact position of the customer. Ground data can be extracted, and the construction cost required for the foundation can be calculated at the visited site. And since the amount of money required for the construction of the house can be estimated from the site and the surrounding environment, the approximate amount of money required for the entire construction of the house, including the foundation work, can be calculated at the site of the visit, and the amount can be provided to the customer. As a result, it is possible to efficiently perform business negotiations with customers and perform so-called jump-in sales without prior appointment, thereby greatly improving the efficiency of visiting sales.

According to the second aspect of the present invention,
If the numerical data of 6 digits after the decimal point is adopted as the data of the latitude / longitude, two positions shifted by several meters can be specified separately, and if the numerical data of 7 digits after the decimal point is adopted, the position is shifted by several tens of cm. These two positions can be specified separately. As a result, it is possible to accurately specify the location of the customer's premises, and to obtain a conversion table in which the longitude / latitude and the customer's address accurately correspond without excessively increasing the data amount relating to the longitude / latitude. it can.

According to the third aspect of the present invention,
Since various types of information about customers stored in the customer information management device can be obtained at the site of the visit,
A wide variety of housing samples that customers might request can be searched at the visited site, and even without so-called appointment, so-called dive-in business, a wide variety of housing samples can be presented to customers, and business negotiations with customers are dense. Can greatly improve the efficiency of visiting sales.

According to the invention described in claim 4 of the present invention,
The construction cost of the foundation can also be calculated at the site of the visit, so if you estimate the amount of money required for the construction of the house from the site and the surrounding environment, immediately before the visit, the construction of the entire house including the foundation work The amount can be calculated, and so-called dive-in business without any appointment in advance can conduct business negotiations with customers efficiently, and can greatly improve the efficiency of visiting business.

According to the invention described in claim 5 of the present invention,
Similarly to the invention described in claim 2, the position of the customer's premises can be accurately specified, and the longitude / latitude and the customer's address can be accurately determined without excessively increasing the data amount relating to the longitude / latitude. A corresponding conversion table can be obtained.

According to the invention described in claim 6 of the present invention,
Similar to the invention described in claim 3, the customer is likely to request,
A wide variety of house samples can be searched at the site of the visit, and even without so-called appointment, so-called dive sales, a wide variety of house samples can be presented to the customer. Efficiency can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an entire embodiment of the present invention.

FIG. 2 is a diagram showing a conversion table according to the embodiment.

FIG. 3 is a diagram showing a map stored in the customer information management device of the embodiment.

FIG. 4 is a diagram showing a city planning map stored in the customer information management device of the embodiment.

FIG. 5 is a diagram showing a sample drawing of the house according to the embodiment.

FIG. 6 is an exemplary view for explaining an operation procedure of the portable information terminal according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sales support system 2 Computer as a ground data display device 3 Computer as a customer information management device 4 Palmtop computer as a portable information terminal 41 Display 50 Conversion table

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04B 7/26 109M F-term (Reference) 5B049 BB05 CC08 CC11 DD01 EE01 EE05 EE07 FF03 FF04 GG03 GG06 GG07 5B075 KK03 KK07 KK13 KK33 KK37 ND03 ND06 ND20 ND35 NK10 NK13 NK54 PQ02 PQ13 PQ32 UU09 UU14 UU21 UU40 5K067 AA34 BB04 DD51 EE02 FF02 FF03 FF23 HH23 JJ52 JJ56 KK15

Claims (6)

[Claims] 1. A portable device having a ground data display device in which ground data serving as a ground map representing a state of the ground is stored, a display for displaying the ground map, and a GPS function for locating a position by GPS. An information terminal, wherein the ground data display device and the portable information terminal are capable of communicating with each other via a wireless telephone network, and the ground data display device has one of a latitude / longitude and an address and the other. A sales support system provided with a conversion table for converting to a business. 2. The sales support system according to claim 1, wherein the latitude / longitude of the conversion table provided in the ground data display device comprises any one of 6-digit and 7-digit numerical data below the decimal point. Sales support system characterized by the following. 3. The sales support system according to claim 1, wherein at least one of the ground data display device and the portable information terminal includes customer data on a customer who is likely to exchange a building construction contract for a building. A sales support system characterized by being able to communicate mutually with a customer information management device in which is accumulated. 4. A portable device having a ground data display device in which ground data serving as a ground map representing the state of the ground is stored, a display for displaying the ground map, and a GPS function for locating a position by GPS. An information terminal, wherein the ground data display device and the portable information terminal can communicate with each other via a wireless telephone network, and the ground data display device has one of a latitude, a longitude, and an address. A sales method using a sales support system provided with a conversion table for converting the data into data, wherein when visiting the customer, the ground information of the customer's premises is displayed on the portable information terminal, and the ground data is used. A business method characterized by conducting business negotiations based on the accumulated amount while calculating the construction work of the building including the foundation. 5. The business method according to claim 4, wherein the latitude / longitude of the conversion table provided in the ground data display device is comprised of one of six or seven digits below the decimal point. Business method characterized by the feature. 6. The business method according to claim 4, wherein at least one of the ground data display device and the portable information terminal transmits customer data on a customer who is likely to exchange a building construction contract for a building. A business method characterized by being able to communicate with the stored customer information management device.